the political position or principle that Palestinian refugees, both first-generation refugees (people still alive ) and their descendants (people ), have a right to return and a right to the property they themselves or their forebears left behind or were forced to leave in what is now Israel and the Palestinian territories (both formerly part of the British Mandate of Palestine) during the 1948 Palestinian expulsion and flight (a result of the 1948 Palestine war) and the 1967 Six-Day War.